I can also reproduce the problem without step 3.
The work-around is to click somewhere on the canvas. This makes the exit of editing mode for first text object. It looks like when text is in editing mode, the text object can't be undone.
I can also reproduce the problem without step 3.
The work-around is to click somewhere on the canvas. This makes the exit of editing mode for first text object. It looks like when text is in editing mode, the text object can't be undone.